{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1fb29510e093a9e86a9c3fa55b4569125819318296a519d8d9c586b7f2417f6a",
    "signature": "0x8758700e84159fbdd9592a8439ad79430958233b17cfb7294d3c3688861b4b452a522afd54a49873c98901574faf626d1f3ae5a5b12f9ed8c3702ee6b8e9cd151b",
    "signer": "0xa88715421a033d43379a5453E11b695CBc643d95",
    "userId": "923355785"
  }
}